RE: SMPP server default data coding and all

> -----Original Message-----
> From: Kita B. Ndara [mailto:[email protected]]


>  I am connecting to a Comverse SMSC. BTW it sets
> coding to 0, but sends this as 7 bit data. Note that
> in cases where the phone sends one message, the
> message is not 7 bit packed. I guess if the phone puts
> a UDH in, the SMSC does not touch it. But how to know
> at SMPP client end??

data_coding 0 is the default 7 bit alphabet, but it should still not be packed. I think your SMSC is broken in that concern. you can test it by sending a simple text message and then a simple long (concatenated) text message - you will see that both has the coding set to 0.

one method of solving that problem is to have a configuration directive for the SMPP driver to name the vendor of the SMSC and then do "quirks handling" for each vendor with a broken implementation (Comverse is not the only one).

--
Oded Arbel
m-Wise mobile solutions
[email protected]

+972-9-9581711 (116)
+972-67-340014

::..
I don't care to belong to any organization that accepts me as a member.
	-- Groucho Marx in a letter of resignation sent to a Hollywood club





> 
> P.
> 
> 
> --- Oded Arbel <[email protected]> wrote: > 
> > > -----Original Message-----
> > > From: Kita B. Ndara [mailto:[email protected]]
> > 
> > >  I hope someone out there can help clarify this. I
> > had
> > > a problem long ago with concatenated text messages
> > > sent from kannel. Now it seems it has to do with
> > > data_coding issues and how kannel handles it all.
> > >  I did a small experiment. Sent a long message
> > from a
> > > Nokia 3310 to Kannel. Below is the full SMPP PDU
> > dump.
> > > Shows that kannel does not decode the message
> > > properly. I nitial look suggests message is 7 bit
> > GSM.
> > > 
> > >  Now I doubt that the latin1_to_gsm is doing the
> > right
> > > thing if the reverse is not!
> > 
> > That's weird - was the message 'Test message
> > claiuils gli via lila livid kli gle liar glu herlg
> > threat tilrat likai glis glaid trolit tilrat tilrl
> > glai illi ski sugar tiaraii kidsu' ? because if so
> > then the message is 7 bit packed as per the GSM PDU
> > specifications, including UDH. AFAIK the SMPP driver
> > does not pack or unpack data in such a way, and IIRC
> > no provider that we use is sending messages in such
> > a way. 
> > AFAIK, the only drivers that actually pack and
> > unpack 7 bit packed PDUs are the AT* drivers.
> > 
> > Do you know which SMSC you are connecting to
> > (manufacturer) ?
> > 
> > --
> > Oded Arbel
> > m-Wise mobile solutions
> > [email protected]
> > 
> > +972-9-9581711 (116)
> > +972-67-340014
> > 
> > ::..
> > In this world, truth can wait; she's used to it. 
> 
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